CN107009228B - Bent axle follow-up grinding on-line measurement instrument - Google Patents
Bent axle follow-up grinding on-line measurement instrument Download PDFInfo
- Publication number
- CN107009228B CN107009228B CN201710231970.6A CN201710231970A CN107009228B CN 107009228 B CN107009228 B CN 107009228B CN 201710231970 A CN201710231970 A CN 201710231970A CN 107009228 B CN107009228 B CN 107009228B
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- Prior art keywords
- swing arm
- swing
- measurement
- arm
- follow
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a kind of bent axle follow-up grinding on-line measurement instrument, including measuring instrument base, arm swing support is slidably supported with the measuring instrument base, it is hinged on arm swing support to have measurement swing arm, it is connected with swing arm oil cylinder between cylinder bracket top and measurement swing arm；Be fixedly installed center fixed gear in the projecting end of measurement swing arm, the external part of measurement swing arm be also equipped with it is swingable follow swing span, be installed on and follow the planetary oscillating gear of oscillating motor output shaft end to be meshed with center fixed gear；Measuring tool, which follows, is installed with measuring tool support in swing arm, two pieces of measurement fixture blocks and a displacement transducer are installed on the measuring tool support, two measurement fixture blocks are respectively on two inclined-planes of V-arrangement reference plane, displacement transducer is located on the line of symmetry of V-arrangement reference plane, inclined-plane angle α=68 ° -72 ° of the V-arrangement reference plane.The present invention can not only realize real-time online connection measurement, and it is high to detect sensitive and machining accuracy.
Description
Technical field
The present invention relates to a kind of crankshaft grinding machine on-line measurement mechanism, more particularly to bent axle cylindrical grinder is to main bearing journal etc.
Cylindrical Grinding Processes face carries out the device of on-line checking in grinding process.
Background technology
Bent axle be in engine vital part, its axle journal etc. be flexibly connected position grinding accuracy directly affect it is past
Compound engine smooth movement, vibration and noise.Due to the particularity of crankshaft structure, the processing of traditional crankshaft grinding is using solid
Fixed pattern is ground；By the control of digital control system, each special plane is successively to the trunnion of bent axle, connecting rod neck, flywheel end face and thrust surface
Grinding is carried out respectively on different special planes etc. different machined surfaces.
With the progress of Grinding Technology, bent axle can be but this to be ground all machined surfaces after clamped one time successively
It is to be positioned with both ends, processed with the center rest support on trunnion during the follow grinding processing position such as connecting rod neck；Due to song
Each section of connecting rod neck relative main neck of axle makees eccentric rotational motion, causes its center position and direction constantly changing, can not be direct
Roundness measurement is carried out to target connecting rod neck.Although existing crankshaft grinding realizes clamped one time continuous grinding, to crank wheel
The detection of wide size and precision still relies on special bent axle and surveys circle device mostly, and these bent axles survey circle device independently of crankshaft grinding
Bed, it is that special inspecting equipment of the circle for principle is surveyed with V-arrangement reference block.Therefore measurement needs to pull down bent axle from grinding machine every time,
Then attach it on measuring instrument, as measurement result is unqualified, it is necessary to inverted repeat said process again, this measuring method
Processing efficiency is not only had a strong impact on, and in the cargo handling process of bent axle, due to reasons such as alignment error, machine tool mechanical characteristics,
Some additive errors will necessarily be produced, are totally unfavorable for this crankshaft grinding processing very high to required precision.Therefore, it is real
Existing bent axle follow-up grinding On-line sampling system is the inevitable requirement for improving grinding efficiency and crudy.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of bent axle follow-up grinding on-line measurement instrument, and it can not only be real
On-line joining process measures when real, can effectively improve production efficiency, and can ensure sensitivity and the requirement on machining accuracy of detection.
In order to solve the above-mentioned technical problem, bent axle follow-up grinding on-line measurement instrument of the invention, including measuring instrument base,
Arm swing support is slidably supported with the measuring instrument base, arm swing support is driven by translational drive mechanism, the driven in translation machine
Structure is installed on measuring instrument base；It is hinged on arm swing support to have measurement swing arm, also it is installed with oil cylinder branch on arm swing support
Frame, swing arm oil cylinder is connected between cylinder bracket top and measurement swing arm；It is fixedly installed in the projecting end of measurement swing arm
Center fixed gear, the external part of measurement swing arm be also equipped with it is swingable follow swing span, follow and be provided with swing span
Oscillating motor is followed, is installed on and follows the planetary oscillating gear of oscillating motor output shaft end to be meshed with center fixed gear；
Described follow is fixedly connected with measuring tool and follows swing arm on swing span, measuring tool, which follows, is installed with measuring tool support in swing arm, the survey
Two pieces of measurement fixture blocks and a displacement transducer are installed, two measurement fixture blocks are located at two inclined-planes of V-arrangement reference plane respectively on tool support
On, displacement transducer is located on the line of symmetry of V-arrangement reference plane, inclined-plane angle α=68 ° -72 ° of the V-arrangement reference plane；Measure swing arm
Swinging plane swinging plane where swing arm is followed parallel to measuring tool.
In said structure, due to adding the measurement swing arm of swing arm hydraulic oil cylinder driving using translational drive mechanism, prismatic pair is formed
The forms of motion being combined with swinging pair so that grinding can be followed and reach appointing for grinding plane domain by measuring the end of swing arm
One position, prismatic pair realize whole mechanism moving along grinding unit head, and revolute realizes lifting and landing for overall measuring arm,
Measurement apparatus to target machined surface flutter exactly and is caught and separate, reach tracking purpose.Again due to center fixing tooth
The measuring tool for the secondary driving of planetary gear that wheel and planetary oscillating gear are formed follows the V that swing arm, measurement fixture block and measuring tool support are formed
Shape measurement apparatus, so in grinding process, V-arrangement reference measurement device can just be close to crank-shaft link neck surface all the time, and
Crank-shaft link neck surface can be applied pressure to certain measurement contact force, to follow connecting rod neck to make off center plan motion；This active
What is adapted to follows swing, counteracts connecting rod neck detection process eccentric motion, realizes displacement transducer and connecting rod on V-arrangement benchmark
The continuous reliable contacts of neck, are accurately measured grinding face size and deviation in real time.Also due to for measured directly
Two measurement fixture blocks and displacement transducer form V-arrangement benchmark circularity measurement structure, can then realize connecting rod roundness deviation
On-line measurement and real-Time Compensation, measurement is more accurate, and machining accuracy can effectively improve；Simultaneously in the survey of V-arrangement reference plane
V-arrangement angle α is the unique variable of relative deviation from circular from function in amount, because α values play amplification or contracting to sensor measurement displacement
Small effect, therefore there is gain effect at the α angles selected to measurement displacement, the present invention controls inclined-plane angle α between 68 ° -72 °,
The inclined-plane angle α span plays inhibitory action to deviation from circular from function in low frequency domain harmonic.The present invention need not only use
The cumbersome time-consuming method that is positioned manually carries out angle positioning to bent axle, realizes on-line measurement, substantially increases processing efficiency,
And detection sensitivity is high, effectively improves abrasive product machining accuracy, realizes optimal process process.
The preferred embodiment of the present invention, the translational drive mechanism include screw pair, and driving feed screw nut
Secondary mobile motor, mobile motor are installed on measuring instrument base, leading screw and the mobile motor output axis connection of screw pair,
The nut of screw pair is fixedly installed on arm swing support.The arm swing support is slidably supported in measuring instrument by rail plate
On base.The translational drive mechanism is rational in infrastructure, reliable, by controlling mobile motor to realize measurement apparatus exactly
Rectilinear movement.
The preferred embodiment of the present invention, the hinge support of the measurement swing arm are fixedly connected with swing arm counterweight, and the swing arm is matched somebody with somebody
Weight extends to coercive mechanism both sides respectively with measurement swing arm.The measurement swing arm and swing arm counterweight are fixedly connected with swing arm fulcrum
On, swing arm fulcrum is by swing arm hinged-support swinging mounting on arm swing support.Because measurement apparatus can produce in real-time detection
Inertia force and moment of inertia, cause and vibrate and influence accuracy of detection, the inertia force in the structure energy active balance motion process, keep away
Exempt from influence of the Harmful Machinery Vibration to accuracy of detection, so as to ensure the operating accuracy of measurement apparatus and Measurement reliability.
The preferred embodiment of the present invention, the external part of the measurement swing arm is installed with fixed gear shaft, in fixation
Center fixed gear is installed with gear shaft, it is described to follow swing span swing to be installed on fixed gear shaft.In the structure
Central gear and Planetary Gear Transmission pair can effectively support and cut the eccentric motion of connecting rod neck detection process, make measurement data more
It is accurate to add.
Further embodiment of the present invention, the measuring tool follow swing arm to be made up of the pumping arm action of two sections of mutually lockings.Should
Structure causes measurement apparatus to can adapt to the On-line sampling system of a variety of crankshaft grindings.
Further embodiment of the present invention, inclined-plane angle α=70 ° for the V-arrangement reference plane that the measurement fixture block is formed.The number
The inclined-plane angle of the V-arrangement reference plane of value plays more preferable inhibitory action to circular error function.
The preferred embodiment of the present invention, described to follow oscillating motor and mobile motor be servomotor.Using servo
Motor drives, and fast response time, operates steadily, can realize the closed-loop control of measurement apparatus.
Brief description of the drawings
Bent axle follow-up grinding on-line measurement instrument of the present invention is described further with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of mounting structure schematic diagram of embodiment of bent axle follow-up grinding on-line measurement instrument of the present invention；
Fig. 2 is the dimensional structure diagram of on-line measurement instrument in Fig. 1 illustrated embodiments；
Fig. 3 is the driving structure schematic diagram that measuring tool follows swing arm in Fig. 2 illustrated embodiments；
Fig. 4 is V-arrangement reference measurement structural representation in Fig. 2 illustrated embodiments.
In figure, 1-measurement fixture block, 2-measuring tool support, 3-displacement transducer, 4-measuring tool follow swing arm, 5-follows pendulum
Moving frame, 6-following oscillating motor, 7-planetary oscillating gear, 8-center fixed gear, 9-fixed gear shaft, 10-measure pendulum
Swing arm, 11-swing arm oil cylinder, 12-cylinder bracket, 13-swing arm counterweight, 14-arm swing support, 15-shaft coupling, 16-movement
Motor, 17-screw pair, 18-measuring instrument base, 19-rail plate, 20-swing arm hinging supporting shaft, 21-swing arm are hinged
Seat, 22-abrasive grinding wheel, 23-grinding unit head, 24-lathe bed.
Embodiment
Bent axle follow-up grinding on-line measurement instrument as shown in Figure 1 and Figure 2, is slided on the lathe bed 24 of grinding machine by bed ways
It is dynamic to be supported with grinding unit head 23, the abrasive grinding wheel 22 driven by grinding machine main motor is installed on grinding unit head 23, ground
Cut and cabled meter is installed by measuring instrument base 18 on unit head 23, measuring instrument base 18 is fixedly installed in grinding unit head 23
On.
On-line measurement instrument includes measuring instrument base 18, has on measuring instrument base 18 by the way that rail plate 19 is slidably supported
Arm swing support 14, translational drive mechanism is provided between arm swing support 14 and measuring instrument base 18, arm swing support 14 is by translating
Drive mechanism is driven, and translational drive mechanism is installed on measuring instrument base 18.Translational drive mechanism includes screw pair 17, silk
Thick stick pair of nut 17 is connected by shaft coupling 15 with mobile motor 16, and mobile motor 16 is servomotor, and mobile motor 16 is fixed
It is installed on measuring instrument base 18.The leading screw of screw pair 17 is connected to the output shaft of mobile motor 16 by shaft coupling 15
On, the nut of screw pair 17 is fixedly installed in the basal surface position of arm swing support 14.
It is hinged on arm swing support 14 to have measurement swing arm 10.Measurement swing arm 10 is fixedly connected on swing arm hinging supporting shaft 20
On, be also fixedly connected with swing arm counterweight 13 on swing arm hinging supporting shaft 20, swing arm counterweight 15 and measurement swing arm 10 respectively to positioned at
The both sides extension of coercive mechanism, and in two planes being parallel to each other.Swing arm hinging supporting shaft 20 is put by two swing arm hinged-supports 21
It is dynamic to be supported on arm swing support 14.
Also be installed with cylinder bracket 12 on arm swing support 14, the top and measurement swing arm 10 of cylinder bracket 12 it
Between be provided with swing arm oil cylinder 11.The piston rod of swing arm oil cylinder 11 is hinged in the arm of measurement swing arm 10, swing arm oil cylinder 11
Cylinder body is then hinged in the apical position of cylinder bracket 12.Swing arm oil cylinder 11 can drive measurement swing arm 10 to swing up and down.
Fixed gear shaft 9 is installed with the external part position of measurement swing arm 10, as shown in figure 3, fixed gear shaft 9
On be installed with center fixed gear 8, be also swingably provided with fixed gear shaft 9 and follow swing span 5, follow swing
It is provided with frame 5 and follows oscillating motor 6, planetary oscillating gear 7, planetary oscillating is housed on the output shaft for following oscillating motor 6
Gear 7 is meshed with center fixed gear 8 and forms planetary gear train.It is servomotor to follow oscillating motor 6.
Measuring tool is also fixedly connected with swing span 5 is followed and follows swing arm 4, measuring tool follows swing arm 4 to use segmentation structure,
Its epimere is fixed on by connecting bolt to be followed on swing span 5, and its next section end is fixedly connected with measuring tool support 2, measuring tool
The two swing arm sections up and down of swing arm 4 are followed with bolt adjustably mutually locking.Measurement swing arm 10 and measuring tool follow swing arm 4 with aluminium
Alloy is material and uses rib structure, to mitigate its weight.
Measuring tool support 2 is also using aluminium alloy as material, substantially curved frame structure.As shown in figure 4, pacify on measuring tool support 2
It is two pieces of antifriction metal (AFM) blocks equipped with two measurement fixture blocks 1 and a movable sensor 3, measurement fixture block 1, the work of measurement fixture block 1 is put down
Face is on two inclined-planes of V-arrangement reference plane, displacement transducer 3 is then on the line of symmetry of V-arrangement reference plane respectively.Actual use
When form two pieces of the V-arrangement reference plane measurement clampings all the time of fixture block 1 and be supported on tested crank-shaft link neck, positioned at V-arrangement reference plane
The displacement transducer 3 of position of center line is also in contact with crank-shaft link neck surface all the time.The inclined-plane angle α of V-arrangement reference plane is to surveying
Measure deviation from circular from important role, in the present embodiment, inclined-plane angle α=70 ° of V-arrangement reference plane, it is preferable that α=68 ° -72 °.
The swinging plane and any centerline parallel of V-arrangement reference plane of swing arm 4 are followed, the swinging plane for measuring the place of swing arm 10 is also parallel
Swinging plane where arm swing support 14.
Above-mentioned is only the preferable embodiment of the present invention, is not intended to limit the invention, all general principles in the present invention
Within change, equivalent substitution and improvement etc., be intended to be limited solely by within protection scope of the present invention.
Claims (10)
1. a kind of bent axle follow-up grinding on-line measurement instrument, including measuring instrument base（18）, it is characterised in that：At the measuring instrument bottom
Seat（18）On be slidably supported with arm swing support（14）, arm swing support（14）Driven by translational drive mechanism, the driven in translation machine
Structure is installed on measuring instrument base（18）On；In arm swing support（14）It is above hinged to have measurement swing arm（10）, arm swing support（14）It is upper to go back
It is installed with cylinder bracket（12）, in cylinder bracket（12）Top and measurement swing arm（10）Between be connected with swing arm oil cylinder
（11）；In measurement swing arm（10）Projecting end be fixedly installed center fixed gear（8）, in measurement swing arm（10）External part
It is also equipped with swingable following swing span（5）, follow swing span（5）On be provided with and follow oscillating motor（6）, it is installed on and follows
Oscillating motor（6）The planetary oscillating gear of output shaft end（7）With center fixed gear（8）It is meshed；Swing span is followed described
（5）On be fixedly connected with measuring tool and follow swing arm（4）, measuring tool follows swing arm（4）On be installed with measuring tool support（2）, the measuring tool
Support（2）On be provided with two pieces measurement fixture blocks（1）With a displacement transducer（3）, two measurement fixture blocks（1）It is located at V-arrangement benchmark respectively
On two inclined-planes in face, displacement transducer（3）On the line of symmetry of V-arrangement reference plane, inclined-plane angle α=68 ° of the V-arrangement reference plane
To 72 °；Measure swing arm（10）Swinging plane follow swing arm parallel to measuring tool（4）The swinging plane at place.
2. bent axle follow-up grinding on-line measurement instrument according to claim 1, it is characterised in that：The translational drive mechanism bag
Include screw pair（17）, and driving screw pair（17）Mobile motor（16）, mobile motor（16）It is installed on measurement
Instrument base（18）On, screw pair（17）Leading screw and mobile motor（16）Export axis connection, screw pair（17）Spiral shell
Mother is fixedly installed in arm swing support（14）On.
3. bent axle follow-up grinding on-line measurement instrument according to claim 1 or 2, it is characterised in that：The arm swing support
（14）Pass through rail plate（19）It is slidably supported in measuring instrument base（18）On.
4. bent axle follow-up grinding on-line measurement instrument according to claim 1, it is characterised in that：The measurement swing arm（10）'s
Hinge support is fixedly connected with swing arm counterweight（13）, the swing arm counterweight（13）With measuring swing arm（10）Prolong respectively to coercive mechanism both sides
Stretch.
5. bent axle follow-up grinding on-line measurement instrument according to claim 4, it is characterised in that：The measurement swing arm（10）With
Swing arm counterweight（13）It is fixedly connected with swing arm fulcrum（20）On, swing arm fulcrum（20）Pass through swing arm hinged-support（21）Swinging mounting
In arm swing support（14）On.
6. bent axle follow-up grinding on-line measurement instrument according to claim 1, it is characterised in that：The measurement swing arm（10）'s
External part is installed with fixed gear shaft（9）, in fixed gear shaft（9）On be installed with center fixed gear（8）, it is described
Follow swing span（5）Swing is installed on fixed gear shaft（9）On.
7. bent axle follow-up grinding on-line measurement instrument according to claim 1, it is characterised in that：The measuring tool follows swing arm
（4）It is made up of the pumping arm action of two sections of mutually lockings.
8. bent axle follow-up grinding on-line measurement instrument according to claim 1, it is characterised in that：The measurement fixture block（1）Structure
Into V-arrangement reference plane inclined-plane angle α=70 °.
9. bent axle follow-up grinding on-line measurement instrument according to claim 2, it is characterised in that：It is described to follow oscillating motor
（6）And mobile motor（16）It is servomotor.
10. bent axle follow-up grinding on-line measurement instrument according to claim 1, it is characterised in that：The measuring instrument base
（18）It is fixedly installed in grinding unit head（23）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231970.6A CN107009228B (en) | 2017-04-11 | 2017-04-11 | Bent axle follow-up grinding on-line measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231970.6A CN107009228B (en) | 2017-04-11 | 2017-04-11 | Bent axle follow-up grinding on-line measurement instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107009228A CN107009228A (en) | 2017-08-04 |
| CN107009228B true CN107009228B (en) | 2018-03-30 |
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ID=59446254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710231970.6A Active CN107009228B (en) | 2017-04-11 | 2017-04-11 | Bent axle follow-up grinding on-line measurement instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN107009228B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643043A (en) * | 2017-10-29 | 2018-01-30 | 无锡万奈特测量设备有限公司 | Connecting rod neck follow-up detector |
| CN107877380A (en) * | 2017-12-05 | 2018-04-06 | 中车戚墅堰机车有限公司 | A kind of crank-shaft link neck angle measurement error compensation method |
| CN113720238A (en) * | 2021-08-30 | 2021-11-30 | 罡阳轴研科技(灌云)有限公司 | High-precision crankshaft eccentric excircle diameter follow-up detection device |
-
2017
- 2017-04-11 CN CN201710231970.6A patent/CN107009228B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107009228A (en) | 2017-08-04 |
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